Across
- 3. evidence of a chemical reaction when a solid is formed
- 5. represents an element usually one capital letter or one capital and one lowercase
- 7. heat energy
- 9. made of liquid iron and nickel
- 10. smallest unit of life
- 13. solid ice melting into liquid water
- 16. the boundary of two plates moving away from each other
- 18. type of rock formed from the cooling and hardening of magma
- 21. the process of burning
- 23. mass divided by volume
Down
- 1. this type of boundary created earthquakes
- 2. more than one type of element chemically combined
- 4. energy changing from one form to another
- 6. typically hard, shiny and malleable
- 8. sum of all the forces acting on an object
- 11. distance divided by time
- 12. energy of motion
- 13. the state of being a solid but acting like a liquid
- 14. heat transfer when objects are touching
- 15. the type of cell that contains a nucleus
- 17. found on the periodic table
- 19. SI unit of force
- 20. energy that is released from atoms
- 22. amount of matter